public void tickle(boolean wifiOff) {
synchronized (mCache) {
if (wifiOff) {
mBssQueues.clear();
} else {
long now = System.currentTimeMillis();
Iterator<Map.Entry<Long, LinkedList<QuerySet>>> bssIterator =
mBssQueues.entrySet().iterator();
while (bssIterator.hasNext()) {
// Get the list of entries for this BSSID
Map.Entry<Long, LinkedList<QuerySet>> bssEntries = bssIterator.next();
Iterator<QuerySet> querySetIterator = bssEntries.getValue().iterator();
while (querySetIterator.hasNext()) {
QuerySet querySet = querySetIterator.next();
QueryEntry queryEntry = querySet.peek();
long age = queryEntry.age(now);
if (age > RequeryTimeHigh) {
// Timed out entry, move on to the next.
queryEntry = querySet.pop();
if (queryEntry == null) {
// Empty query set, update status and remove it.
querySet.getOsuInfo().setIconStatus(OSUInfo.IconStatus.NotAvailable);
querySetIterator.remove();
} else {
// Start a query on the next entry and bail out of the set iteration
initiateQuery(querySet.getBssid());
break;
}
} else if (age > RequeryTimeLow) {
// Re-issue queries for qualified entries and bail out of set iteration
initiateQuery(querySet.getBssid());
break;
}
}
if (bssEntries.getValue().isEmpty()) {
// Kill the whole bucket if the set list is empty
bssIterator.remove();
}
}
}
}
}
